Indian plastic roads and plastic building-material ventures
- The record does not name which of my species, waters, soils or forests were harmed.
India has used waste plastic in tens of thousands of kilometres of roads, and ventures in Kenya and elsewhere make building materials from plastic waste. Reported volumes are small, and test results on emissions and fire behaviour are mixed.
Plastic made up 6–8% of the mix, about 1 tonne per kilometre (Indian Infrastructure).
Status As of October 2026: the latest volumes in the sources reviewed are from February 2024 (India) and 2025 (Conceptos Plásticos); no regulatory ruling is on record.
What happened
Indian Infrastructure reported in October 2024 that waste plastic had been used in about 40,000 km of rural roads and 2,900 km of national highways in India. The mix contained 6–8% plastic, at about 1 tonne per kilometre.
In Kenya, Gjenge Makers was reported to have processed 50 tonnes of plastic in 2021 into paving products, with a daily capacity of around 500 kg (Africanews). The Africanews report is a secondary source; the primary report could not be checked.
National Geographic reported in 2025 that Conceptos Plásticos had converted about 4,000 tonnes of plastic in total into more than 550 classrooms, and that its factory in Côte d'Ivoire, built with UNICEF, had a design capacity of 9,600 tonnes a year.
Laboratory and test results point to risks. RMIT in 2022 found in a laboratory study that plastic added as a bitumen modifier released microplastics earlier, and that cold and low pH increased release. Austroads in 2019 recommended a precautionary approach because of worker exposure to formaldehyde and toluene vapour and microplastic leaching from plastic roads. A 2022 Stellenbosch University fire test found that exposed plastic-bottle ecobricks showed flaming droplets, dense smoke and sustained burning.
- 2019Austroads recommends a precautionary approach to plastic roads (health and microplastic leaching)
- 2021Gjenge Makers reported to process 50 tonnes of plastic
- 2022RMIT laboratory study on earlier microplastic release; Stellenbosch University fire test of ecobricks
- 2024India reported to have used waste plastic in about 40,000 km of rural roads and 2,900 km of national highways (as of February 2024)
- 2025Conceptos Plásticos reported to have converted about 4,000 tonnes of plastic in total; Côte d'Ivoire factory design capacity 9,600 t/year
How it looked
Shown
- Waste plastic turned into roads, pavements and classroomsProgrammes and ventures as reported in Indian Infrastructure, Africanews and National Geographic · Indian Infrastructure
Recorded
- About 40,000 km of rural roads and 2,900 km of national highways used waste plastic by February 2024; 6–8% plastic in the mix, about 1 t per km.
- Gjenge Makers: 50 t processed in 2021; capacity around 500 kg a day.
- Conceptos Plásticos: about 4,000 t in total, more than 550 classrooms; Côte d'Ivoire design capacity 9,600 t/year.
- Exposed ecobricks in a Stellenbosch fire test showed flaming droplets, dense smoke and sustained burning.
- RMIT (2022, laboratory): plastic-modified bitumen released microplastics earlier; Austroads (2019) advised a precautionary approach.
In court and with insurers
Lawsuits and rulings
Insurers
What nature saw
Nature's report opens this page. Below: further outcomes measured on the ground.
What we don't know
Nature
- Not measured Harm to nature: The record holds no measurement of harm to nature.
Record
- None on record The sources reviewed do not show what share of these projects' funding comes from public programmes, donors or prizes; no record of the subsidy share was found.
- None on record The Gjenge Makers figures come from a secondary report; the primary report could not be checked.
Did the harm stop?
Not established in the sources reviewed.
Who paid?
Not established in the sources reviewed; the sources mention public programmes (India's rural road fund), donors (UNICEF) and prizes without giving amounts.
Sources
Press and investigations
- India constructs 40,000 km of rural roads using plastic waste for sustainable highwaysIndian Infrastructure · 2024-10
- Single-use plastic is being turned into colourful pavements in KenyaAfricanews · 2020-12
- Meet the builders making schools from plastic wasteNational Geographic · 2025
Researchers
- Behaviour of masonry systems incorporating waste plastic subjected to fireStellenbosch University · 2022